Java tutorial
//package com.java2s; import java.io.InputStream; public class Main { public static byte[] InputStream2Bytes(InputStream is) { String str = ""; byte[] readByte = new byte[1024]; try { while (is.read(readByte, 0, 1024) != -1) { str += new String(readByte).trim(); } return str.getBytes(); } catch (Exception e) { e.printStackTrace(); } return null; } }